Towing Issues: 91 Previa 2wd max tow weight, landscape trailer, tow weight

Question
I want to pull a landscape trailer and lawnmower for commercial use with my 2WD 91' Previa. Is this a bad idea? What is the Previas max towing weight? If I install a transmission cooler would I be able to use it to tow?

Answer
I show a max towing capacity of 3500 pounds for your vehicle, but I am not sure if that would be correct... I remember these vehicles and they did not strike me as being equipped for towing much...(I could be wrong)

Transmission cooler would most likely be a good idea, but remember you are using an 16 year old vehicle to do this, and as a result all the prior miles on it and wear and tear will also affect how well it does the job.